Since files with randomized names like "111qy..." can sometimes be used to distribute malware:
Check the source page or the comments section of the site where you found the link. 4. Safety Warning 111qy6e4WWW.rar
Knowing the source would help me find the specific installation or usage instructions for you. Since files with randomized names like "111qy
If the archive asks for a password during extraction, it is often: it is often: Once extracted
Once extracted, check the folder for the following files which usually serve as the "guide": README.txt or Read Me.txt Instructions.pdf